Question

To make brine, José buys 1 kg of salt and pays 12 pesos. If he buys 4 kg, they charge him 48 pesos, but for 100 pesos they sell him 9 kg. What is the constant of proportionality?

245

likes
1225 views

Answer to a math question To make brine, José buys 1 kg of salt and pays 12 pesos. If he buys 4 kg, they charge him 48 pesos, but for 100 pesos they sell him 9 kg. What is the constant of proportionality?

Expert avatar
Brice
4.8
106 Answers
Para encontrar la constante de proporcionalidad, podemos usar la relación entre la cantidad de sal comprada y el costo. La constante de proporcionalidad (k) está dada por la relación entre el costo (y) y la cantidad de sal (x), es decir, k = y/x. Dado: 1 kg de sal cuesta 12 pesos. 4 kg de sal cuestan 48 pesos. 9 kg de sal cuestan 100 pesos. Podemos usar la información proporcionada para encontrar la constante de proporcionalidad (k) estableciendo la ecuación de proporcionalidad: Por 1 kg: 12 = 1k Para 4 kg: 48 = 4k Para 9 kg: 100 = 9k Resolviendo para k en cada caso: Por 1 kg: k = 12/1 = 12 Para 4 kg: k = 48/4 = 12 Para 9 kg: k = 100/9 ≈ 11,11 La constante de proporcionalidad es de aproximadamente 12 pesos por kilogramo de sal.

Frequently asked questions (FAQs)
What is the area of a circle with radius 5
+
What is the integral of cosh(x) dx?
+
Math question: What is the value of f(x) if f(x) represents a constant function with f(x) = c?
+
New questions in Mathematics
Find the equation of the normal to the curve y=x²+4x-3 at point(1,2)
Derivative of x squared
Determine the momentum of a 20 kg body traveling at 20 m/s.
Divide 22 by 5 solve it by array and an area model
(-5/6)-(-5/4)
If f(x,y)=6xy^2+3y^3 find (∫3,-2) f(x,y)dx.
Convert 78 percent to a decimal
How many square feet of floor area are there in three two-storey apartment houses, each of which is 38 feet wide and 76 feet long?
89, ÷ 10
Solve the following equation for x in exact form and then find the value to the nearest hundredths (make sure to show your work): 5e3x – 3 = 25
Engineers want to design seats in commercial aircraft so that they are wide enough to fit ​95% of all males.​ (Accommodating 100% of males would require very wide seats that would be much too​ expensive.) Men have hip breadths that are normally distributed with a mean of 14.4 in. and a standard deviation of 1.2 in. Find P95. That​ is, find the hip breadth for men that separates the smallest ​95% from the largest 5​%.
Convert 5/9 to a decimal
TEST 123123+1236ttttt
2)A tourist has 15 pairs of pants in his hotel room closet. Suppose 5 are blue and the rest are black. The tourist leaves his room twice a day. He takes a pair of pants and puts them on, the tourist leaves the first pair of pants in the closet again and takes another one and puts them on. What is the probability that the two pants chosen are black?
-1%2F2x-4%3D18
2.380× (1+0.05) / 0.95−0.05
To find the increased amount on a standard term deposit with the following conditions: starting amount: BGN 13000, type of deposit: annual, annual compound interest rate: 1.4%, after 4 years;
At the end of a lively discussion within your study group, your class neighbor, for the relevance of your points of view, asks your opinion on the subject of their debate which is the following question Am I the slave of my unconscious? Solve the problem posed by this subject in an argumentative production.
A post office has three categories of letters: 60% are from businesses, 30% are individual mail, and the remaining 10% are government mail. 5% of the letters from businesses have address errors, 10% of the individual mail has address errors, while 1% of the government mail has address errors. If we receive a letter with an address error, what is the probability that it is individual mail?"
Find the rule that connects the first number to the second number of each pair. Apply the rule to find the missing number in the third pair. (18 is to 22) (54 is to 26) (9 is to ?)